STAND FOR SAMPLES FATIGUE TESTS Russian patent published in 2008 - IPC G01N3/08 

FIELD: technological processes; measurement.

SUBSTANCE: invention is related to testing equipment. Stand consists of casing, left and right nuts installed in the casing with the possibility of rotation, screws that interact with nuts with clamps for sample installation and installed with the possibility of axial displacement, kinematic train, which represents four pairs of gear wheels. Four pairs of gear wheels connect the screws to nuts so that wheels that sit on screws and wheels that sit on nuts are rotated by means of gear wheels, which are rigidly fixed in the inlet shaft. The wheels that sit on screws have the number of cogs a+1, wheels that are adjacent to them and sit on the inlet shaft have number of cogs a, wheel that sits on the left nut has number of cogs a+2, wheel that is adjacent to it has number of cogs a+1, wheel that sits on the right nut has number of cogs a+3, wheel that is adjacent to it has number of cogs a+2, where value of number a belongs to recommended range of values of cogs numbers with interval from 12 to 157, which is limited by the possibility of gear wheels manufacturing.

EFFECT: expansion of fatigue testing stand functional resources.

1 dwg